

Coal-Powered Energy Finally Overtaken by Wind and Solar in the US (electrek.co) 87
"Wind and solar energy generated more electricity in the U.S. than coal for the first time last year," reports the Wall Street Journal, "according to analysis from clean-energy think tank Ember.
"The two renewable energy sources accounted for 17% of the country's power mix while coal fell to a low of 15%, it said." Solar was the fastest-growing energy source, according to Ember's analysis of data from the U.S. Energy Information Administration, increasing 27% from the year before, while wind rose 7%... Natural gas generation increased 3.3% in 2024, according to Ember, and remains by far the largest source of electricity in the U.S., accounting for 43% of the mix...
California and Nevada both surpassed 30% annual share of solar in their electricity mix for the first time last year (32% and 30%, respectively). California's battery growth was key to its solar success. It installed 20% more battery capacity than it did solar capacity, which helped it transfer a significant share of its daytime solar to the evening. Texas installed more solar and battery capacity than even California.
Yet the growth of solar was uneven — 28 states generated less than 5% of their electricity from solar in 2024, highlighting significant untapped potential — even before adding battery storage.
The article includes this observation from Dave Jones, chief analyst at Ember. "The fall in battery costs is a gamechanger for how much solar the U.S. electricity grid could integrate in the near future."
Electrek notes that "After being stagnant for 14 years, electricity demand started rising in recent years and saw a 3% increase in 2024, marking the fifth-highest level of rise this century..." Natural gas grew three times more than the decline in coal, increasing power sector CO2 emissions slightly (0.7%). Coal fell by the second smallest amount since 2014, as gas and clean energy growth met rising electricity demand, whereas historically, they have replaced coal. Despite growing emissions, the carbon intensity of electricity continued to decline. The rise in power demand was much faster than the rise in power sector CO2 emissions, making each unit of electricity likely the cleanest it has ever been.
"The two renewable energy sources accounted for 17% of the country's power mix while coal fell to a low of 15%, it said." Solar was the fastest-growing energy source, according to Ember's analysis of data from the U.S. Energy Information Administration, increasing 27% from the year before, while wind rose 7%... Natural gas generation increased 3.3% in 2024, according to Ember, and remains by far the largest source of electricity in the U.S., accounting for 43% of the mix...
California and Nevada both surpassed 30% annual share of solar in their electricity mix for the first time last year (32% and 30%, respectively). California's battery growth was key to its solar success. It installed 20% more battery capacity than it did solar capacity, which helped it transfer a significant share of its daytime solar to the evening. Texas installed more solar and battery capacity than even California.
Yet the growth of solar was uneven — 28 states generated less than 5% of their electricity from solar in 2024, highlighting significant untapped potential — even before adding battery storage.
The article includes this observation from Dave Jones, chief analyst at Ember. "The fall in battery costs is a gamechanger for how much solar the U.S. electricity grid could integrate in the near future."
Electrek notes that "After being stagnant for 14 years, electricity demand started rising in recent years and saw a 3% increase in 2024, marking the fifth-highest level of rise this century..." Natural gas grew three times more than the decline in coal, increasing power sector CO2 emissions slightly (0.7%). Coal fell by the second smallest amount since 2014, as gas and clean energy growth met rising electricity demand, whereas historically, they have replaced coal. Despite growing emissions, the carbon intensity of electricity continued to decline. The rise in power demand was much faster than the rise in power sector CO2 emissions, making each unit of electricity likely the cleanest it has ever been.
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No politician lives forever. Even Trump can't (permanently) stop the decline in prices for wind and solar, and even Trump can't prop up the economics of coal forever. Despite his best efforts in his first term, coal declined and green energy made gains. The economic reality is too much for a skeptical President and party to overcome.
Re: Don't worry (Score:2)
Re: Don't worry (Score:3)
Re:Only one issue still remains... (Score:5, Informative)
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...So this would at the very worst case scenario an increase of 1% to total waste. Since we assumed that no part of the turbine could be recycled or reused, and we assumed a very short lifespan for turbines, the true numbers are likely not remotely this high.
Even so, I'd say this is a situation where size matters. Turbine blades are huge, and probably don't stack very densely. Also, IIRC they're made of carbon-fiber, which is apparently the new asbestos [newcivilengineer.com]. So we probably don't want to be cutting or breaking them into smaller pieces - at least not unless it's done under tightly controlled conditions.
De-commissioned wind turbines may end up being more of a problem than we're ready for.
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How much mass goes into wind power versus alternatives like nuclear fission? I have an idea from a chart produced by the US Department of Energy and seen on this web page with figure 2: http://cmo-ripu.blogspot.com/2... [blogspot.com]
I have no problems with onshore wind power as it appears to be low cost, quite safe, low in CO2 emissions, and more. I live in "tornado alley" which has since been renamed as the "wind corridor" by renewable energy advocates. There is a lot of wind energy produced here. As much as I like
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Yes, getting clean 2.2GWe from the new Votgle reactors and another GWe or so from Hinkley is nice, but we're so breathtakingly bad at this now that it took a combined investment of $50B and 15 years to cough up about 3.5GW of capacity. That's irrelevant when utility-scale solar is now under $1B/GW.
The place for nuclear power, going forward, is a fleet of molten salt react
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done under tightly controlled conditions.
This is a really easy problem to solve with automation. Feed them into one end of a large shredder, with the output into a sealed building with adequate filtration. Once you've accumulated x-amount compress it into a brick and bury. Wood chippers and car crushers are ancient tech, and air filtration is even older.
I suspect you're just looking for excuses to not install something that you think is ugly, and your virtue signalling is just for show.
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I suspect you're just looking for excuses to not install something that you think is ugly, and your virtue signalling is just for show.
Nope, not even close. I'm just very aware of how frequently humankind has been bitten in the ass by some of the unintended consequences of its technological advances. I also considered our history of covering our eyes with our hands and saying "what consequences?".
Re:Only one issue still remains... (Score:4, Interesting)
Still, it would be possible, surely, to simply put the wind turbine in a furnace that vaporized it at thousands of degrees C and just put the whole thing into the air as gas.
Because that's what the competition does, every day, with their fuel. So that's really a fair comparison.
It took some time to find the numbers and do conversions. At 7000 cf/MWh, a gas plant burns through 165 kg of methane for each MWh, so 827 kg/hour to displace a 5 MW wind turbine. About 20 tonnes of natural gas per day.
Every ten days, the natural gas plant burns the weight of that wind turbine and tosses the waste into the atmosphere.
I've been over the numbers twice, and I'm still shocked. Can this be right?
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I've re-checked a few times now, and it's 3500 cf per MWh of heat, which means 7000 cf per MWh of *electricity* from a combined-cycle gas turbine that's 50% efficient.
But, of course, the 200T mass of the wind turbine is silly. It forgets the heavy concrete foundation, but I'm good with that as I bet the foundations last a century, like most concrete foundations, and you can wear out 5+ turbines planted in it. (I think that's why nobody mentions the concrete.)
Most of the mass is steel, and that's 95% recy
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A wind turbine lasts 40 years.
And if you maintain it: as long as you want.
STUPID IDIOT.
How long is the empire state building standing? Oh?
Or the "Hoover Dam"? Oh?
https://en.wikipedia.org/wiki/... [wikipedia.org]
10 years live span - my ass. Around my home town in Germany we have hundreds of 40 year old wind mills.
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If you feel insulted when I point out the life span is roughly 4 times as long as you estimate ...
That is YOUR problem.
The point was to make an overestimate of the amount of material produced. Therefore, a deliberately underestimate of life span is used
Yes. And that was pretty clear. Next time just use reasonable under and over estimations. Simple. I usually just round to the next 10k or 100k depending how big the numbers are.
So, 7444 would be 10k ... 14999 probably would be 10k, too. Of course you could ar
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If you feel insulted when I point out the life span is roughly 4 times as long as you estimate ...
That is YOUR problem.
Hmm? I didn't refer to you pointing out a lifespan that is four times as an insult. I was referring to your decision to write "STUPID IDIOT" in all caps.
The point was to make an overestimate of the amount of material produced. Therefore, a deliberately underestimate of life span is used
Yes. And that was pretty clear.
So apparently you think someone is a "STUPID IDIOT" for rounding more generously than you would? That's an interesting viewpoint. But maybe we should discuss why I did decide to use 10 years rather than 40 (which I agree is more typical). Repowering is a thing https://wwindea.org/repowering-an-efficient-tool-to-boost-wind-power [wwindea.org] where turbines are replaced
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It is a difference if you put all kind of garbage into a landfill, with bio hazards or threat to humans, versus completely inert blades of windmills that are just stored, placed, deposited somewhere.
Well, considering that it is fibres and "glue", perhaps the glue is not 100% inert. The myth part is to call it "garbage". No one ever cared about what ever "real garbage" (like plastic bags) get produced, but suddenly a wing of a windmill is something special. It is special, yes. Special the regard (as I can te
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I hate it when people cite YouTube as a source, as if it is somehow authoritative.
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Good catch, there's no way I was going to watch the video either! Too much time wasted, you can't scan through a video.
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I hate it when people cite YouTube as a source, as if it is somehow authoritative.
I hate it when people dismiss YouTube videos as a source when all they are doing is taking a highly technical source and boiling it down to something the average person can comprehend.
If a YouTube video is taking a paper from some government agency or university and presenting the pertinent information in a way that most people can comprehend then that's providing a service to the community. That doesn't make the information irrelevant just because it is now in a video, the information still resides in the
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If a YouTube video summarizes the information in a government or university source, then proper attribution would involve citing the original source, not the summary as provided on YouTube.
There is no academic or scientific or research discipline in which YouTube videos are considered acceptable sources. It's not just my personal "disdain."
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I understand your point in this case, but...
Science doesn't forbid you from publishing your research on Youtube. It just gives you principles you have to follow. The key idea of research has been that you explain how to repeat the experiment, so that others can verify it. And I think Youtube is perfect platform for this as video explains things that are often left out from the papers. I think Nile Red is good example on this. I'm pretty sure I have seen some original chemistry on his channel. Youtuber itsel
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Sure, it's fine to explain things on YouTube. You can learn how to do just about anything there. But these how-to videos aren't authoritative. You often have to try multiple how-to videos before you find one that makes sense, or works for your situation.
If somebody wants to persuade on YouTube, fine. But they need to present sources that are *not* on YouTube. Otherwise, they are no better than the My Pillow Guy explaining his "absolute proof" that the 2020 election was stolen.
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Re:Only one issue still remains... (Score:5, Insightful)
> that needs to be addressed before we continue to deploy this technology
Nobody seems to give a shit about the environmental issues with coal, which are objectively worse in every way, so why start now?
Perfect is the enemy of better.
Also, did you actually watch the video that you linked? 1:50 "All that is to say; the problem is overstated, and it's overblown." She then spends the rest of the video explaining the problem (including how the reason they're hard to recycle is because they're built to last) and how it's being addressed. Not the damning indictment of wind power you seem to hope it is.
=Smidge=
Re:Only one issue still remains... (Score:4, Insightful)
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Even if you hate wind/solar and think AGW is a hoax, you should still be against coal plants because they cause problems in the same way leaded gas caused problems.
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A solar panel is mostly glass, aluminium and sand. Just stockpile and eventually machines to delaminate them will be affordable. Same with turbines. The solutions are trivial, they just require scale to be economical. Yards of turbine blades and bases is a good thing, once a mobile grinder gets build you can cart it around the country and chop it all up. Problem solved.
Great but (Score:2, Insightful)
Energy prices keep going up. We were told these renewable sources would be cheaper by now.
Re:Great but (Score:5, Interesting)
Energy prices keep going up. We were told these renewable sources would be cheaper by now.
They do lower energy prices for the simple reason that the cost of mining wind and sunlight remains rock steady at $0.0 per MWh. However, transmission and distribution costs have increased because operators have dragged their hells on grid upgrades and expansions, fossil fuel energy sources like natural gas are still in the mix meaning that whenever somebody in the Middle East celebrates a wedding by emptying an AK-47 mag into the air the cost of fossil fuels rockets up, Putin's little history revision project in Ukraine isn't helping either and finally, all kinds of energy hungry industries like data/computing centres for AI and bitcoin mining drive up prices. The world is not as simple as Mr. Trump makes you think it is.
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operators have dragged their [heels] on grid upgrades and expansions
Batteries (backup sources) aren't the operators responsibility. They are the responsibility of the producers. To ensure contractual delivery responsibility.
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They are the responsibility of: no one
I can perfectly well sell a XYZ MW band from 10:00 to 14:00 local time, without any regards of the time before 10:00 and after 14:00.
And if I fail to deliver: there is back up market. Called: reserve power. They take care of my failure, and I pay them for that.
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They are cheaper, but the grid operators who have substantial investments in fossil fuels and nuclear are going to make sure they get paid first.
You can bypass them by installing your own solar. It will pay back in a few years and then it's all profit. Near zero cost electricity over lifetime.
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You don't seem to understand how grids run. System operators call up suppliers and schedule them to produce certain amounts at certain times. If you can't do that (by having backup sources) you get bumped off the phone list. Traditional suppliers know how to work within this system.
Nobody wants a supplier who calls and says "Now I have some power to sell. Whoops. A cloud just went overhead."
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That's not how the European grid works. They have an auction where everyone bids to supply the expected demand a day in advance. They start with the cheapest sources and work up until expected demand is met.
They also have some extra reserve generation on standby, in case something breaks. Getting to be less of an issue now that grids are well interconnected.
We have very good weather forecasting 24 hours in advance so it's rare that renewables can't meet their obligations. Happens to all sources, stuff break
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They also have some extra reserve generation on standby,
Which "they" is that? Here, we expect delivery by the bidder*. It's up to them (the bidder) to contract to have the reserves standing by.
*The whole bidding thing to set prices isn't a bad idea in some cases. Unless you are in California and you let Enron game the system.
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The grid operator. They have to ensure that there is some margin, in case say a nuclear reactor SCRAMs or a transmission line goes down.
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That's not how our grid works. You, as a producer, are responsible for arranging backup should your source fail.
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That seems somewhat inefficient. Say you are a nuclear plant, you would need to pay someone to keep the equivalent of your output on spinning standby in case yours goes down. I suppose you could pool with other suppliers, but who is better placed to estimate required spinning standby and offline standby than the grid operator?
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That's not how the European grid works. They have an auction where everyone bids to supply the expected demand a day in advance. They start with the cheapest sources and work up until expected demand is met.
That is only the "day ahead" trade, as the name implies.
The rest is traded YEARS in advance, usually 2 years. And then smaller brackets are traded months in advance.
Day ahead trading or hours ahead is an extremely low percentage of the whole energy market.
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The one who is not knowing how it works is you ...
Phone list my ass.
Power is not sold on the minute/second. It is sold months, years, or if necessary days ahead.
The fluctuations happening "right now" are covered by the grid operator. And he bills the power supply companies that made his grid "fluctuating"
There is no damn "phone list" - how the fuck would that work?
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Do they?
https://www.usinflationcalcula... [usinflatio...ulator.com]
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Great (Score:1)
Great I guess, but coal is a low bar to pass. Coal production peaked around 2008 and natural gas started taking over because it's far cheaper and easier to deal with, and burns cleaner.
As an aside: "Environmental" types are still trying to ban gas appliances because NG is still a fossil fuel, but that's a harder sell because for years the public relations operation was to bill NG as the cheap, clean alternative to coal in order to get rid of coal. New York is beginning to ban gas stoves in most new construc
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Natural gas turbines spin up/down faster though and can be retrofit for hydrogen.
The non nuclear net zero transition is first PV to save on natural gas, then a transition to hydrogen from natural gas. Expensive, but doable.
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The non nuclear net zero transition is first PV to save on natural gas, then a transition to hydrogen from natural gas. Expensive, but doable.
Where does this hydrogen come from?
I've seen mention of "white hydrogen" ( https://en.wikipedia.org/wiki/... [wikipedia.org] ) as an energy source but this appears to be quite rare. Most hydrogen comes from natural gas ( https://en.wikipedia.org/wiki/... [wikipedia.org] ) which isn't exactly reducing CO2 emissions since there's added steps between the natural gas and electricity production where losses in efficiency can be found.
I believe there will be no real reduction in CO2 emissions without nuclear fission as an energy source. There
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More PV and membraneless electrolysers.
PV gets ever cheaper and then it gets cheaper some more, no end in sight.
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The end in sight on the cost of solar PV is material costs versus other sources, see figure 2: http://cmo-ripu.blogspot.com/2... [blogspot.com]
Put every energy source on a level playing field and nuclear fission wins out based on material requirements. Because we can't level that field completely I expect wind, hydro, and geothermal to play big parts in our future energy supply. Solar PV will be largely relegated to off grid uses like satellites in orbit, cabins out in the woods, sailboats at sea, and so forth. If hydr
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The steel/concrete costs aren't inherent. The cheaper PV gets, the more low angle mounting arrangements make sense. Low to the ground, low angle east/west position requires very little mounting material and no anchoring.
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I am not against nuclear, but I think nuclear will lose because it is too expensive and too slow to build. Those small modular reactors might prove me wrong, but the problem with them is that they don't exist yet, so it will take time to get them ready and the price is still unknown. So currently only way to get cheap energy is to build wind or solar, so that is what the world will build.
Wind and solar will obviously cause big changes to electricity prices depending on sun and wind, which will lure differen
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I am not against nuclear, but I think nuclear will lose because it is too expensive and too slow to build.
The problems of time to build and cost cannot be solved until we have people experienced in building them. It was only with building more and more windmills and solar PV panels that we got the cost to where it is now, nuclear fission is no different in that respect.
Those small modular reactors might prove me wrong, but the problem with them is that they don't exist yet, so it will take time to get them ready and the price is still unknown.
The only way to know what they will cost is to build a dozen or so full scale examples. Building just one or two is insufficient to gauge the cost since people are still learning the process and it is too easy to dismiss any problems in constru
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Natural gas kitchen stoves are hands-down the best, that's why professional chefs insist on them.
why is everyone ignoring natural gas? (Score:2)
I read this
and thought "wait, 15+17 isn't even a THIRD of 100%, where's the rest of it?"
LNG makes up a huge chunk of the rest of that 100% of course. We still have a really long way to go before get hydrocarbons down to even 50% of what we use.
It's a finite resource taken from the ground just as coal or oil is. I don't understand how natural gas (usually "liquefied natural gas" or LNG) is flying
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Natural gas is a compromise.
It is better (environmentally) than burning coal/oil, but more harmful than wind/solar.
It is a waste product in the process of pumping petroleum (when we drill for petroleum, natural gas bubbles up and has to be dealt with).
It is less harmful (environmentally) to burn it than to release it unburnt into the atmosphere.
So we use it.
Impose tarrifs on "renewable energy". (Score:5, Funny)
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More like there's already a tariff on Chinese solar panels and polysilicon.
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As I recall the Trump administration is continuing a policy from the Biden adminstation of tripling the USA nuclear power capacity by 2050. That would mean lowering CO2 emissions and lowering energy costs for Americans for the foreseeable future.
Getting energy cost lowered long term might require rising tariffs on energy in the short term. Plenty of solar power production in the USA relies on cheap PV panels from China. Can the USA expect China to continue selling PV panels at low cost to the USA? I dou
I wonder (Score:2)
I wonder what the number would be if the incremental energy required to install those renewables were deducted from the amount generated.